Lopez was also concerned with her dress flying up, exposing her rear, since the dress had an high-cut slit in the front.

Prior to the nip-slip, Lopez and Diaz were both praised on Twitter and on the red carpet for their dresses by fashion guru, “Project Runway’s” Tim Gunn.

“I’ve always loved fashion,” Lopez told Gunn when asked about her revealing gown and how her style has evolved over the years. “I enjoy playing dress up. I’ve been exposed (no pun intended) to so much.”

Lopez said that at the beginning of her career her style was “street and hip/hop-ish” because she’s from the Bronx, and that she will always have a little of that in her style.

Diaz sported a fitting Gucchi gown.

“Tonight is all about old Hollywood glamour,” Gunn told Diaz. “You personify that perfectly.”

Later in the evening, Diaz was seen laughing and giggling next to Diddy, Lopez’s old flame. This comes weeks after the two were caught making out multiple times in various hotels in NYC and Beverly Hills, Calif.

You can reach Alexandra Gratereaux at: Alexandra.Gratereaux@foxnewslatino.com or via Twitter:@GalexLatino